add favicon

app/server.go

@@ -179,6 +179,9 @@ func (s *Server) UserInterface() {
 		s.challengeMutex.Unlock()
 	}
 
+	// Serve favicon.ico by serving orly.png
+	s.mux.HandleFunc("/favicon.ico", s.handleFavicon)
+
 	// Serve the main login interface (and static assets) or proxy in dev mode
 	s.mux.HandleFunc("/", s.handleLoginInterface)
 
@@ -203,6 +206,26 @@ func (s *Server) UserInterface() {
 	s.mux.HandleFunc("/api/sprocket/config", s.handleSprocketConfig)
 }
 
+// handleFavicon serves orly.png as favicon.ico
+func (s *Server) handleFavicon(w http.ResponseWriter, r *http.Request) {
+	// In dev mode with proxy configured, forward to dev server
+	if s.devProxy != nil {
+		s.devProxy.ServeHTTP(w, r)
+		return
+	}
+
+	// Serve orly.png as favicon.ico from embedded web app
+	w.Header().Set("Content-Type", "image/png")
+	w.Header().Set("Cache-Control", "public, max-age=86400") // Cache for 1 day
+
+	// Create a request for orly.png and serve it
+	faviconReq := &http.Request{
+		Method: "GET",
+		URL:    &url.URL{Path: "/orly.png"},
+	}
+	ServeEmbeddedWeb(w, faviconReq)
+}
+
 // handleLoginInterface serves the main user interface for login
 func (s *Server) handleLoginInterface(w http.ResponseWriter, r *http.Request) {
 	// In dev mode with proxy configured, forward to dev server